GPAI Ledger › Claude Mythos Preview (Anthropic) › Capture 31 Aug 2026
Claude Mythos Preview — capture 20260831T103639Z
| Provider | Anthropic |
|---|---|
| Target | AIAL evaluation page — https://raw.githubusercontent.com/AIAccountabilityLab/gpai-training-transparency/38dfbd8da731954fe4eef2364736805a3eef99be/public/evals/claude-mythos-preview/index.html |
| Fetched (UTC) | 2026-08-31T10:36:39Z |
| Upstream commit | 3 Aug 2026 — 38dfbd8da731 (when this state began to stand in the upstream repository; this archive fetched it at the time above, not then) |
| Stored file | 19,443 bytes — not served (third-party research, archived but not republished here); the hash and timestamp proof below still establish what was published when |
| SHA-256 | 105be4af4a82a23682a72c8a42a6cf75476f3fef85bc7ce0125e0114ee85b5de |
| OpenTimestamps proof | 105be4af4a82a23682a72c8a42a6cf75476f3fef85bc7ce0125e0114ee85b5de.html.20260831T103639Z.ots (calendar-attested; anchored in bitcoin over time) |
| Wayback | not saved |
| Prior capture of this target | cd8cf0cc7685e4b7fcc6bf0b46f12e55887def83f676c13157cc0032bac91bb1 (captured 2026-08-31T10:31:25Z) |
Verify: obtain the file from the target address above, then sha256sum it — it must equal the hash above; the .ots proof dates that hash.
Structured facts
This is another organisation's own research, and this project does not redistribute it: the file itself is not served here; these facts still pin its identity and let any copy be authenticated against this record.
| Document size | 19,443 bytes |
|---|---|
| Canonical text SHA-256 | 490feedc8e8d21ffa7aab9d4f1574811347c601fea8b16240c222044c5b234f2 |
| Extracted text length | 679 words |